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authorBoaz Harrosh <bharrosh@panasas.com>2008-10-28 09:38:12 -0400
committerBoaz Harrosh <bharrosh@panasas.com>2009-03-31 12:44:31 -0400
commite6af00f1d1697ca41ab6a55307066ef3466833a9 (patch)
tree7aa0b64f14a994f30e6bdc8e8c0b7f811038e794 /fs/exofs/dir.c
parentbeaec07ba6af35d387643b76a2920a7a6e22207b (diff)
exofs: dir_inode and directory operations
implementation of directory and inode operations. * A directory is treated as a file, and essentially contains a list of <file name, inode #> pairs for files that are found in that directory. The object IDs correspond to the files' inode numbers and are allocated using a 64bit incrementing global counter. * Each file's control block (AKA on-disk inode) is stored in its object's attributes. This applies to both regular files and other types (directories, device files, symlinks, etc.). Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Diffstat (limited to 'fs/exofs/dir.c')
-rw-r--r--fs/exofs/dir.c657
1 files changed, 657 insertions, 0 deletions
diff --git a/fs/exofs/dir.c b/fs/exofs/dir.c
new file mode 100644
index 000000000000..6865605fb6ab
--- /dev/null
+++ b/fs/exofs/dir.c
@@ -0,0 +1,657 @@
1/*
2 * Copyright (C) 2005, 2006
3 * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com)
4 * Copyright (C) 2005, 2006
5 * International Business Machines
6 * Copyright (C) 2008, 2009
7 * Boaz Harrosh <bharrosh@panasas.com>
8 *
9 * Copyrights for code taken from ext2:
10 * Copyright (C) 1992, 1993, 1994, 1995
11 * Remy Card (card@masi.ibp.fr)
12 * Laboratoire MASI - Institut Blaise Pascal
13 * Universite Pierre et Marie Curie (Paris VI)
14 * from
15 * linux/fs/minix/inode.c
16 * Copyright (C) 1991, 1992 Linus Torvalds
17 *
18 * This file is part of exofs.
19 *
20 * exofs is free software; you can redistribute it and/or modify
21 * it under the terms of the GNU General Public License as published by
22 * the Free Software Foundation. Since it is based on ext2, and the only
23 * valid version of GPL for the Linux kernel is version 2, the only valid
24 * version of GPL for exofs is version 2.
25 *
26 * exofs is distributed in the hope that it will be useful,
27 * but WITHOUT ANY WARRANTY; without even the implied warranty of
28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 * GNU General Public License for more details.
30 *
31 * You should have received a copy of the GNU General Public License
32 * along with exofs; if not, write to the Free Software
33 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
34 */
35
36#include "exofs.h"
37
38static inline unsigned exofs_chunk_size(struct inode *inode)
39{
40 return inode->i_sb->s_blocksize;
41}
42
43static inline void exofs_put_page(struct page *page)
44{
45 kunmap(page);
46 page_cache_release(page);
47}
48
49/* Accesses dir's inode->i_size must be called under inode lock */
50static inline unsigned long dir_pages(struct inode *inode)
51{
52 return (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
53}
54
55static unsigned exofs_last_byte(struct inode *inode, unsigned long page_nr)
56{
57 loff_t last_byte = inode->i_size;
58
59 last_byte -= page_nr << PAGE_CACHE_SHIFT;
60 if (last_byte > PAGE_CACHE_SIZE)
61 last_byte = PAGE_CACHE_SIZE;
62 return last_byte;
63}
64
65static int exofs_commit_chunk(struct page *page, loff_t pos, unsigned len)
66{
67 struct address_space *mapping = page->mapping;
68 struct inode *dir = mapping->host;
69 int err = 0;
70
71 dir->i_version++;
72
73 if (!PageUptodate(page))
74 SetPageUptodate(page);
75
76 if (pos+len > dir->i_size) {
77 i_size_write(dir, pos+len);
78 mark_inode_dirty(dir);
79 }
80 set_page_dirty(page);
81
82 if (IS_DIRSYNC(dir))
83 err = write_one_page(page, 1);
84 else
85 unlock_page(page);
86
87 return err;
88}
89
90static void exofs_check_page(struct page *page)
91{
92 struct inode *dir = page->mapping->host;
93 unsigned chunk_size = exofs_chunk_size(dir);
94 char *kaddr = page_address(page);
95 unsigned offs, rec_len;
96 unsigned limit = PAGE_CACHE_SIZE;
97 struct exofs_dir_entry *p;
98 char *error;
99
100 /* if the page is the last one in the directory */
101 if ((dir->i_size >> PAGE_CACHE_SHIFT) == page->index) {
102 limit = dir->i_size & ~PAGE_CACHE_MASK;
103 if (limit & (chunk_size - 1))
104 goto Ebadsize;
105 if (!limit)
106 goto out;
107 }
108 for (offs = 0; offs <= limit - EXOFS_DIR_REC_LEN(1); offs += rec_len) {
109 p = (struct exofs_dir_entry *)(kaddr + offs);
110 rec_len = le16_to_cpu(p->rec_len);
111
112 if (rec_len < EXOFS_DIR_REC_LEN(1))
113 goto Eshort;
114 if (rec_len & 3)
115 goto Ealign;
116 if (rec_len < EXOFS_DIR_REC_LEN(p->name_len))
117 goto Enamelen;
118 if (((offs + rec_len - 1) ^ offs) & ~(chunk_size-1))
119 goto Espan;
120 }
121 if (offs != limit)
122 goto Eend;
123out:
124 SetPageChecked(page);
125 return;
126
127Ebadsize:
128 EXOFS_ERR("ERROR [exofs_check_page]: "
129 "size of directory #%lu is not a multiple of chunk size",
130 dir->i_ino
131 );
132 goto fail;
133Eshort:
134 error = "rec_len is smaller than minimal";
135 goto bad_entry;
136Ealign:
137 error = "unaligned directory entry";
138 goto bad_entry;
139Enamelen:
140 error = "rec_len is too small for name_len";
141 goto bad_entry;
142Espan:
143 error = "directory entry across blocks";
144 goto bad_entry;
145bad_entry:
146 EXOFS_ERR(
147 "ERROR [exofs_check_page]: bad entry in directory #%lu: %s - "
148 "offset=%lu, inode=%llu, rec_len=%d, name_len=%d",
149 dir->i_ino, error, (page->index<<PAGE_CACHE_SHIFT)+offs,
150 _LLU(le64_to_cpu(p->inode_no)),
151 rec_len, p->name_len);
152 goto fail;
153Eend:
154 p = (struct exofs_dir_entry *)(kaddr + offs);
155 EXOFS_ERR("ERROR [exofs_check_page]: "
156 "entry in directory #%lu spans the page boundary"
157 "offset=%lu, inode=%llu",
158 dir->i_ino, (page->index<<PAGE_CACHE_SHIFT)+offs,
159 _LLU(le64_to_cpu(p->inode_no)));
160fail:
161 SetPageChecked(page);
162 SetPageError(page);
163}
164
165static struct page *exofs_get_page(struct inode *dir, unsigned long n)
166{
167 struct address_space *mapping = dir->i_mapping;
168 struct page *page = read_mapping_page(mapping, n, NULL);
169
170 if (!IS_ERR(page)) {
171 kmap(page);
172 if (!PageChecked(page))
173 exofs_check_page(page);
174 if (PageError(page))
175 goto fail;
176 }
177 return page;
178
179fail:
180 exofs_put_page(page);
181 return ERR_PTR(-EIO);
182}
183
184static inline int exofs_match(int len, const unsigned char *name,
185 struct exofs_dir_entry *de)
186{
187 if (len != de->name_len)
188 return 0;
189 if (!de->inode_no)
190 return 0;
191 return !memcmp(name, de->name, len);
192}
193
194static inline
195struct exofs_dir_entry *exofs_next_entry(struct exofs_dir_entry *p)
196{
197 return (struct exofs_dir_entry *)((char *)p + le16_to_cpu(p->rec_len));
198}
199
200static inline unsigned
201exofs_validate_entry(char *base, unsigned offset, unsigned mask)
202{
203 struct exofs_dir_entry *de = (struct exofs_dir_entry *)(base + offset);
204 struct exofs_dir_entry *p =
205 (struct exofs_dir_entry *)(base + (offset&mask));
206 while ((char *)p < (char *)de) {
207 if (p->rec_len == 0)
208 break;
209 p = exofs_next_entry(p);
210 }
211 return (char *)p - base;
212}
213
214static unsigned char exofs_filetype_table[EXOFS_FT_MAX] = {
215 [EXOFS_FT_UNKNOWN] = DT_UNKNOWN,
216 [EXOFS_FT_REG_FILE] = DT_REG,
217 [EXOFS_FT_DIR] = DT_DIR,
218 [EXOFS_FT_CHRDEV] = DT_CHR,
219 [EXOFS_FT_BLKDEV] = DT_BLK,
220 [EXOFS_FT_FIFO] = DT_FIFO,
221 [EXOFS_FT_SOCK] = DT_SOCK,
222 [EXOFS_FT_SYMLINK] = DT_LNK,
223};
224
225#define S_SHIFT 12
226static unsigned char exofs_type_by_mode[S_IFMT >> S_SHIFT] = {
227 [S_IFREG >> S_SHIFT] = EXOFS_FT_REG_FILE,
228 [S_IFDIR >> S_SHIFT] = EXOFS_FT_DIR,
229 [S_IFCHR >> S_SHIFT] = EXOFS_FT_CHRDEV,
230 [S_IFBLK >> S_SHIFT] = EXOFS_FT_BLKDEV,
231 [S_IFIFO >> S_SHIFT] = EXOFS_FT_FIFO,
232 [S_IFSOCK >> S_SHIFT] = EXOFS_FT_SOCK,
233 [S_IFLNK >> S_SHIFT] = EXOFS_FT_SYMLINK,
234};
235
236static inline
237void exofs_set_de_type(struct exofs_dir_entry *de, struct inode *inode)
238{
239 mode_t mode = inode->i_mode;
240 de->file_type = exofs_type_by_mode[(mode & S_IFMT) >> S_SHIFT];
241}
242
243static int
244exofs_readdir(struct file *filp, void *dirent, filldir_t filldir)
245{
246 loff_t pos = filp->f_pos;
247 struct inode *inode = filp->f_path.dentry->d_inode;
248 unsigned int offset = pos & ~PAGE_CACHE_MASK;
249 unsigned long n = pos >> PAGE_CACHE_SHIFT;
250 unsigned long npages = dir_pages(inode);
251 unsigned chunk_mask = ~(exofs_chunk_size(inode)-1);
252 unsigned char *types = NULL;
253 int need_revalidate = (filp->f_version != inode->i_version);
254
255 if (pos > inode->i_size - EXOFS_DIR_REC_LEN(1))
256 return 0;
257
258 types = exofs_filetype_table;
259
260 for ( ; n < npages; n++, offset = 0) {
261 char *kaddr, *limit;
262 struct exofs_dir_entry *de;
263 struct page *page = exofs_get_page(inode, n);
264
265 if (IS_ERR(page)) {
266 EXOFS_ERR("ERROR: "
267 "bad page in #%lu",
268 inode->i_ino);
269 filp->f_pos += PAGE_CACHE_SIZE - offset;
270 return PTR_ERR(page);
271 }
272 kaddr = page_address(page);
273 if (unlikely(need_revalidate)) {
274 if (offset) {
275 offset = exofs_validate_entry(kaddr, offset,
276 chunk_mask);
277 filp->f_pos = (n<<PAGE_CACHE_SHIFT) + offset;
278 }
279 filp->f_version = inode->i_version;
280 need_revalidate = 0;
281 }
282 de = (struct exofs_dir_entry *)(kaddr + offset);
283 limit = kaddr + exofs_last_byte(inode, n) -
284 EXOFS_DIR_REC_LEN(1);
285 for (; (char *)de <= limit; de = exofs_next_entry(de)) {
286 if (de->rec_len == 0) {
287 EXOFS_ERR("ERROR: "
288 "zero-length directory entry");
289 exofs_put_page(page);
290 return -EIO;
291 }
292 if (de->inode_no) {
293 int over;
294 unsigned char d_type = DT_UNKNOWN;
295
296 if (types && de->file_type < EXOFS_FT_MAX)
297 d_type = types[de->file_type];
298
299 offset = (char *)de - kaddr;
300 over = filldir(dirent, de->name, de->name_len,
301 (n<<PAGE_CACHE_SHIFT) | offset,
302 le64_to_cpu(de->inode_no),
303 d_type);
304 if (over) {
305 exofs_put_page(page);
306 return 0;
307 }
308 }
309 filp->f_pos += le16_to_cpu(de->rec_len);
310 }
311 exofs_put_page(page);
312 }
313
314 return 0;
315}
316
317struct exofs_dir_entry *exofs_find_entry(struct inode *dir,
318 struct dentry *dentry, struct page **res_page)
319{
320 const unsigned char *name = dentry->d_name.name;
321 int namelen = dentry->d_name.len;
322 unsigned reclen = EXOFS_DIR_REC_LEN(namelen);
323 unsigned long start, n;
324 unsigned long npages = dir_pages(dir);
325 struct page *page = NULL;
326 struct exofs_i_info *oi = exofs_i(dir);
327 struct exofs_dir_entry *de;
328
329 if (npages == 0)
330 goto out;
331
332 *res_page = NULL;
333
334 start = oi->i_dir_start_lookup;
335 if (start >= npages)
336 start = 0;
337 n = start;
338 do {
339 char *kaddr;
340 page = exofs_get_page(dir, n);
341 if (!IS_ERR(page)) {
342 kaddr = page_address(page);
343 de = (struct exofs_dir_entry *) kaddr;
344 kaddr += exofs_last_byte(dir, n) - reclen;
345 while ((char *) de <= kaddr) {
346 if (de->rec_len == 0) {
347 EXOFS_ERR(
348 "ERROR: exofs_find_entry: "
349 "zero-length directory entry");
350 exofs_put_page(page);
351 goto out;
352 }
353 if (exofs_match(namelen, name, de))
354 goto found;
355 de = exofs_next_entry(de);
356 }
357 exofs_put_page(page);
358 }
359 if (++n >= npages)
360 n = 0;
361 } while (n != start);
362out:
363 return NULL;
364
365found:
366 *res_page = page;
367 oi->i_dir_start_lookup = n;
368 return de;
369}
370
371struct exofs_dir_entry *exofs_dotdot(struct inode *dir, struct page **p)
372{
373 struct page *page = exofs_get_page(dir, 0);
374 struct exofs_dir_entry *de = NULL;
375
376 if (!IS_ERR(page)) {
377 de = exofs_next_entry(
378 (struct exofs_dir_entry *)page_address(page));
379 *p = page;
380 }
381 return de;
382}
383
384ino_t exofs_inode_by_name(struct inode *dir, struct dentry *dentry)
385{
386 ino_t res = 0;
387 struct exofs_dir_entry *de;
388 struct page *page;
389
390 de = exofs_find_entry(dir, dentry, &page);
391 if (de) {
392 res = le64_to_cpu(de->inode_no);
393 exofs_put_page(page);
394 }
395 return res;
396}
397
398int exofs_set_link(struct inode *dir, struct exofs_dir_entry *de,
399 struct page *page, struct inode *inode)
400{
401 loff_t pos = page_offset(page) +
402 (char *) de - (char *) page_address(page);
403 unsigned len = le16_to_cpu(de->rec_len);
404 int err;
405
406 lock_page(page);
407 err = exofs_write_begin(NULL, page->mapping, pos, len,
408 AOP_FLAG_UNINTERRUPTIBLE, &page, NULL);
409 if (err)
410 EXOFS_ERR("exofs_set_link: exofs_write_begin FAILD => %d\n",
411 err);
412
413 de->inode_no = cpu_to_le64(inode->i_ino);
414 exofs_set_de_type(de, inode);
415 if (likely(!err))
416 err = exofs_commit_chunk(page, pos, len);
417 exofs_put_page(page);
418 dir->i_mtime = dir->i_ctime = CURRENT_TIME;
419 mark_inode_dirty(dir);
420 return err;
421}
422
423int exofs_add_link(struct dentry *dentry, struct inode *inode)
424{
425 struct inode *dir = dentry->d_parent->d_inode;
426 const unsigned char *name = dentry->d_name.name;
427 int namelen = dentry->d_name.len;
428 unsigned chunk_size = exofs_chunk_size(dir);
429 unsigned reclen = EXOFS_DIR_REC_LEN(namelen);
430 unsigned short rec_len, name_len;
431 struct page *page = NULL;
432 struct exofs_sb_info *sbi = inode->i_sb->s_fs_info;
433 struct exofs_dir_entry *de;
434 unsigned long npages = dir_pages(dir);
435 unsigned long n;
436 char *kaddr;
437 loff_t pos;
438 int err;
439
440 for (n = 0; n <= npages; n++) {
441 char *dir_end;
442
443 page = exofs_get_page(dir, n);
444 err = PTR_ERR(page);
445 if (IS_ERR(page))
446 goto out;
447 lock_page(page);
448 kaddr = page_address(page);
449 dir_end = kaddr + exofs_last_byte(dir, n);
450 de = (struct exofs_dir_entry *)kaddr;
451 kaddr += PAGE_CACHE_SIZE - reclen;
452 while ((char *)de <= kaddr) {
453 if ((char *)de == dir_end) {
454 name_len = 0;
455 rec_len = chunk_size;
456 de->rec_len = cpu_to_le16(chunk_size);
457 de->inode_no = 0;
458 goto got_it;
459 }
460 if (de->rec_len == 0) {
461 EXOFS_ERR("ERROR: exofs_add_link: "
462 "zero-length directory entry");
463 err = -EIO;
464 goto out_unlock;
465 }
466 err = -EEXIST;
467 if (exofs_match(namelen, name, de))
468 goto out_unlock;
469 name_len = EXOFS_DIR_REC_LEN(de->name_len);
470 rec_len = le16_to_cpu(de->rec_len);
471 if (!de->inode_no && rec_len >= reclen)
472 goto got_it;
473 if (rec_len >= name_len + reclen)
474 goto got_it;
475 de = (struct exofs_dir_entry *) ((char *) de + rec_len);
476 }
477 unlock_page(page);
478 exofs_put_page(page);
479 }
480
481 EXOFS_ERR("exofs_add_link: BAD dentry=%p or inode=%p", dentry, inode);
482 return -EINVAL;
483
484got_it:
485 pos = page_offset(page) +
486 (char *)de - (char *)page_address(page);
487 err = exofs_write_begin(NULL, page->mapping, pos, rec_len, 0,
488 &page, NULL);
489 if (err)
490 goto out_unlock;
491 if (de->inode_no) {
492 struct exofs_dir_entry *de1 =
493 (struct exofs_dir_entry *)((char *)de + name_len);
494 de1->rec_len = cpu_to_le16(rec_len - name_len);
495 de->rec_len = cpu_to_le16(name_len);
496 de = de1;
497 }
498 de->name_len = namelen;
499 memcpy(de->name, name, namelen);
500 de->inode_no = cpu_to_le64(inode->i_ino);
501 exofs_set_de_type(de, inode);
502 err = exofs_commit_chunk(page, pos, rec_len);
503 dir->i_mtime = dir->i_ctime = CURRENT_TIME;
504 mark_inode_dirty(dir);
505 sbi->s_numfiles++;
506
507out_put:
508 exofs_put_page(page);
509out:
510 return err;
511out_unlock:
512 unlock_page(page);
513 goto out_put;
514}
515
516int exofs_delete_entry(struct exofs_dir_entry *dir, struct page *page)
517{
518 struct address_space *mapping = page->mapping;
519 struct inode *inode = mapping->host;
520 struct exofs_sb_info *sbi = inode->i_sb->s_fs_info;
521 char *kaddr = page_address(page);
522 unsigned from = ((char *)dir - kaddr) & ~(exofs_chunk_size(inode)-1);
523 unsigned to = ((char *)dir - kaddr) + le16_to_cpu(dir->rec_len);
524 loff_t pos;
525 struct exofs_dir_entry *pde = NULL;
526 struct exofs_dir_entry *de = (struct exofs_dir_entry *) (kaddr + from);
527 int err;
528
529 while (de < dir) {
530 if (de->rec_len == 0) {
531 EXOFS_ERR("ERROR: exofs_delete_entry:"
532 "zero-length directory entry");
533 err = -EIO;
534 goto out;
535 }
536 pde = de;
537 de = exofs_next_entry(de);
538 }
539 if (pde)
540 from = (char *)pde - (char *)page_address(page);
541 pos = page_offset(page) + from;
542 lock_page(page);
543 err = exofs_write_begin(NULL, page->mapping, pos, to - from, 0,
544 &page, NULL);
545 if (err)
546 EXOFS_ERR("exofs_delete_entry: exofs_write_begin FAILD => %d\n",
547 err);
548 if (pde)
549 pde->rec_len = cpu_to_le16(to - from);
550 dir->inode_no = 0;
551 if (likely(!err))
552 err = exofs_commit_chunk(page, pos, to - from);
553 inode->i_ctime = inode->i_mtime = CURRENT_TIME;
554 mark_inode_dirty(inode);
555 sbi->s_numfiles--;
556out:
557 exofs_put_page(page);
558 return err;
559}
560
561/* kept aligned on 4 bytes */
562#define THIS_DIR ".\0\0"
563#define PARENT_DIR "..\0"
564
565int exofs_make_empty(struct inode *inode, struct inode *parent)
566{
567 struct address_space *mapping = inode->i_mapping;
568 struct page *page = grab_cache_page(mapping, 0);
569 unsigned chunk_size = exofs_chunk_size(inode);
570 struct exofs_dir_entry *de;
571 int err;
572 void *kaddr;
573
574 if (!page)
575 return -ENOMEM;
576
577 err = exofs_write_begin(NULL, page->mapping, 0, chunk_size, 0,
578 &page, NULL);
579 if (err) {
580 unlock_page(page);
581 goto fail;
582 }
583
584 kaddr = kmap_atomic(page, KM_USER0);
585 de = (struct exofs_dir_entry *)kaddr;
586 de->name_len = 1;
587 de->rec_len = cpu_to_le16(EXOFS_DIR_REC_LEN(1));
588 memcpy(de->name, THIS_DIR, sizeof(THIS_DIR));
589 de->inode_no = cpu_to_le64(inode->i_ino);
590 exofs_set_de_type(de, inode);
591
592 de = (struct exofs_dir_entry *)(kaddr + EXOFS_DIR_REC_LEN(1));
593 de->name_len = 2;
594 de->rec_len = cpu_to_le16(chunk_size - EXOFS_DIR_REC_LEN(1));
595 de->inode_no = cpu_to_le64(parent->i_ino);
596 memcpy(de->name, PARENT_DIR, sizeof(PARENT_DIR));
597 exofs_set_de_type(de, inode);
598 kunmap_atomic(page, KM_USER0);
599 err = exofs_commit_chunk(page, 0, chunk_size);
600fail:
601 page_cache_release(page);
602 return err;
603}
604
605int exofs_empty_dir(struct inode *inode)
606{
607 struct page *page = NULL;
608 unsigned long i, npages = dir_pages(inode);
609
610 for (i = 0; i < npages; i++) {
611 char *kaddr;
612 struct exofs_dir_entry *de;
613 page = exofs_get_page(inode, i);
614
615 if (IS_ERR(page))
616 continue;
617
618 kaddr = page_address(page);
619 de = (struct exofs_dir_entry *)kaddr;
620 kaddr += exofs_last_byte(inode, i) - EXOFS_DIR_REC_LEN(1);
621
622 while ((char *)de <= kaddr) {
623 if (de->rec_len == 0) {
624 EXOFS_ERR("ERROR: exofs_empty_dir: "
625 "zero-length directory entry"
626 "kaddr=%p, de=%p\n", kaddr, de);
627 goto not_empty;
628 }
629 if (de->inode_no != 0) {
630 /* check for . and .. */
631 if (de->name[0] != '.')
632 goto not_empty;
633 if (de->name_len > 2)
634 goto not_empty;
635 if (de->name_len < 2) {
636 if (le64_to_cpu(de->inode_no) !=
637 inode->i_ino)
638 goto not_empty;
639 } else if (de->name[1] != '.')
640 goto not_empty;
641 }
642 de = exofs_next_entry(de);
643 }
644 exofs_put_page(page);
645 }
646 return 1;
647
648not_empty:
649 exofs_put_page(page);
650 return 0;
651}
652
653const struct file_operations exofs_dir_operations = {
654 .llseek = generic_file_llseek,
655 .read = generic_read_dir,
656 .readdir = exofs_readdir,
657};
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-12 20:24:20 -0500